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https://www.readbyqxmd.com/read/29331749/paediatric-dysgerminoma-results-of-three-consecutive-french-germ-cell-tumours-clinical-studies-tgm-85-90-95-with-late-effects-study
#1
Gwénaëlle Duhil de Bénazé, Hélène Pacquement, Cécile Faure-Conter, Catherine Patte, Daniel Orbach, Nadège Corradini, Claire Berger, Hélène Sudour-Bonnange, Cécile Vérité, Hélène Martelli, Brice Fresneau
METHODS: French patients (≤18years) treated for dysgerminoma between 1985 and 2005 in TGM-85, 90, 95 protocols were included. Treatment was based on primary unilateral oophorectomy followed by prophylactic lymph node irradiation (1985-1998) or a wait-and-see strategy (1998-2005) for localised completely resected tumours (pS1) or by platinum-based chemotherapy for advanced diseases. RESULTS: Forty-eight patients (median age 12.8 years) were included. Six patients had gonadal dysgenesis...
January 10, 2018: European Journal of Cancer
https://www.readbyqxmd.com/read/29324788/esrp1-is-a-marker-of-mouse-fetal-germ-cells-and-differentially-expressed-during-spermatogenesis
#2
Shaghayegh Saeidi, Farnaz Shapouri, Robb U de Iongh, Franca Casagranda, Jessie M Sutherland, Patrick S Western, Eileen A McLaughlin, Mary Familari, Gary R Hime
ESRP1 regulates alternative splicing, producing multiple transcripts from its target genes in epithelial tissues. It is upregulated during mesenchymal to epithelial transition associated with reprogramming of fibroblasts to iPS cells and has been linked to pluripotency. Mouse fetal germ cells are the founders of the adult gonadal lineages and we found that Esrp1 mRNA was expressed in both male and female germ cells but not in gonadal somatic cells at various stages of gonadal development (E12.5-E15.5). In the postnatal testis, Esrp1 mRNA was highly expressed in isolated cell preparations enriched for spermatogonia but expressed at lower levels in those enriched for pachytene spermatocytes and round spermatids...
2018: PloS One
https://www.readbyqxmd.com/read/29259864/an-up-date-on-epigenetic-and-molecular-markers-in-testicular-germ-cell-tumors
#3
Paolo Chieffi
Testicular germ cell tumor (TGCT) is the most common solid malignancy occurring in young men between 20 and 34 years of age, and its incidence has increased significantly over the last decades. Clinically several types of immunohistochemical markers are useful and sensitive. These new biomarkers are genes expressed in primordial germ cells/gonocytes and embryonic pluripotency-related cells but not in normal adult germ cells and they include OCT3/4, HMGA1 and 2, NANOG, SOX2, and LIN28. Gene expression in TGCT is regulated, at least in part, by DNA and histone modifications, and the epigenetic profile of these tumours is characterised by genome-wide demethylation...
November 2017: Intractable & Rare Diseases Research
https://www.readbyqxmd.com/read/29198337/ovarian-sex-cord-stromal-tumours-and-small-cell-tumours-pathological-genetic-and-management-aspects
#4
REVIEW
Stergios Boussios, Michele Moschetta, George Zarkavelis, Alexandra Papadaki, Aristides Kefas, Konstantina Tatsi
Non-epithelial ovarian cancers (NEOC) constitute a group of uncommon malignancies and their treatment is still a challenging task. Collectively, these tumours account for about 10% of all ovarian cancers and occur in all age groups from childhood to old-age. They include malignancies of germ cell origin, sex cord-stromal cell origin, and a variety of extremely rare ovarian cancers, such as small-cell carcinomas and sarcomas. Each of these classifications encompasses multiple histologic subtypes. It is imperative that these rare tumours are managed with accurate diagnosis, staging, and treatment, to optimise the outcome...
December 2017: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/29180926/radiotherapy-in-testicular-germ-cell-tumours-a-literature-review
#5
REVIEW
Joanna Jonska-Gmyrek, Piotr Peczkowski, Wojciech Michalski, Grazyna Poniatowska, Agnieszka Zolciak-Siwinska, Beata Kotowicz, Pawel Wiechno, Magdalena Golawska, Maria Kowalska, Tomasz Demkow
Testicular germ cell tumours (GCT) represent about 1-2% of malignant in men. The essential therapeutic option for early-stage GCT is radical orchiectomy (RO), except in situations that require immediate chemotherapy in patients with a massive dissemination and unequivocally elevated levels of tumour markers. Postoperative radiotherapy (PORT) in patients with testicular seminoma in Clinical Stage I (CS I) is one of the treatment options next to active surveillance (AS) and chemotherapy (CHTH). Regardless of the procedure, five-year survival in this group of patients ranges between 97% and 100%...
2017: Contemporary Oncology Współczesna Onkologia
https://www.readbyqxmd.com/read/29179257/is-the-fshr-2039a-g-variant-associated-with-susceptibility-to-testicular-germ-cell-cancer
#6
A K Bang, A S Busch, K Almstrup, J Gromoll, S Kliesch, E Rajpert-De Meyts, N E Skakkebaek, A Juul, F Tüttelmann, N Jørgensen
Testicular germ cell cancer (TGCC) is derived from germ cell neoplasia in situ (GCNIS), which arises due to niche disturbances affecting the Sertoli cells. It is believed that exogenous endocrine factors have a crucial role in governing neoplastic transformation but on a strong hereditary background. Follicle-stimulating hormone (FSH) is the major regulatory hormone of the Sertoli cells. FSH signalling-related single-nucleotide polymorphisms (SNPs) have previously been shown to affect FSH action in men at different levels...
November 27, 2017: Andrology
https://www.readbyqxmd.com/read/29178401/childhood-cancer-incidence-and-survival-in-japan-and-england-a-population-based-study-1993-2010
#7
Kayo Nakata, Yuri Ito, Winnie Magadi, Audrey Bonaventure, Charles A Stiller, Kota Katanoda, Tomohiro Matsuda, Isao Miyashiro, Kathy Pritchard-Jones, Bernard Rachet
This study aimed to compare cancer incidence and trends in survival for children diagnosed in Japan and England, using population-based cancer registry data. The analysis was based on 5,192 children with cancer (age 0-14 years) from six prefectural cancer registries in Japan and 21,295 children diagnosed in England during 1993-2010. Differences in incidence rates between the two countries were measured with Poisson regression models. Overall survival was estimated using the Kaplan-Meier method. Incidence rates for Hodgkin lymphoma, renal tumours, and Ewing sarcomas in England were more than twice as high as those in Japan...
November 24, 2017: Cancer Science
https://www.readbyqxmd.com/read/29175835/paediatric-ovarian-tumours-and-their-associated-cancer-susceptibility-syndromes
#8
REVIEW
Catherine Goudie, Leora Witkowski, Stephanie Vairy, W Glenn McCluggage, William D Foulkes
Non-epithelial ovarian tumours are rare neoplasms that occasionally arise in childhood and adolescence. They can be associated with various cancer susceptibility syndromes. The morphological overlap seen across these tumours and their rarity can make the diagnosis challenging. In the case of an incorrect diagnosis, the underlying genetic susceptibility may be missed. In this review, we outline the genetic background of ovarian non-epithelial tumours arising in children, emphasizing the genes harbouring pathogenic germline variants associated with each tumour type...
November 24, 2017: Journal of Medical Genetics
https://www.readbyqxmd.com/read/29169625/ovarian-embryonal-carcinoma-in-a-dog
#9
B Banco, R Ferrari, D Stefanello, D Groppetti, A Pecile, S Faverzani, M Longo, D D Zani, G Ravasio, M Caniatti, V Grieco
A 17-month-old female doberman pinscher was referred for an abdominal mass and ascites. Exploratory laparotomy revealed the presence of a large neoplastic mass replacing the right ovary and associated with multiple mesovarian, mesometrial and peritoneal nodules. An ovariohysterectomy was performed. Grossly, the tumour was soft and multilocular with large areas of haemorrhage and necrosis. Microscopically, it was infiltrative and composed of round and polygonal cells arranged respectively in solid sheets or forming distorted tubular structures separated by thick fibrovascular septae...
November 2017: Journal of Comparative Pathology
https://www.readbyqxmd.com/read/29161957/induced-pluripotent-stem-cells-from-a-marsupial-the-tasmanian-devil-sarcophilus-harrisii-insight-into-the-evolution-of-mammalian-pluripotency
#10
Prasanna Weeratunga, Arash Shahsavari, Dmitry A Ovchinnikov, Ernst Jurgen Wolvetang, Deanne Jeanette Whitworth
We demonstrate the generation of Tasmanian devil (Sarcophilus harrisii) induced pluripotent stem cells (DeviPSCs) from dermal fibroblasts by lentiviral delivery of human transcription factors. DeviPSCs display characteristic pluripotent stem cell colony morphology, with individual cells having a high nuclear to cytoplasmic ratio and alkaline phosphatase activity. DeviPSCs are leukemia inhibitory factor-dependent and have reactivated endogenous OCT4 (POU5F1), POU2 (POU5F3), SOX2, NANOG and DAX1 genes, retained a normal karyotype, and concurrently silenced exogenous human transgenes...
November 22, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/29160922/igf1r-signalling-in-testicular-germ-cell-tumour-cells-impacts-on-cell-survival-and-acquired-cisplatin-resistance
#11
Joanna Selfe, Neil C Goddard, Alan McIntyre, Kathryn R Taylor, Jane Renshaw, Sergey D Popov, Khin Thway, Brenda Summersgill, Robert A Huddart, Duncan C Gilbert, Janet M Shipley
Testicular germ cell tumours (TGCT) are the most frequent malignancy and cause of death from solid tumours in the 20-40 year age group. Although most cases show sensitivity to cis-platinum-based chemotherapy, this is associated with long-term toxicities and chemo-resistance. Roles for receptor tyrosine kinases other than KIT are largely unknown in TGCT. We therefore conducted a phosphoproteomic screen and identified the insulin growth factor receptor-1 (IGF1R) as both highly expressed and activated in TGCT cell lines representing the non-seminomatous subtype...
November 21, 2017: Journal of Pathology
https://www.readbyqxmd.com/read/29159968/histochemical-and-immunohistochemical-characterization-of-rodlet-cells-in-the-intestine-of-two-teleosts-anguilla-anguilla-and-cyprinus-carpio
#12
G Bosi, J A DePasquale, M Manera, G Castaldelli, L Giari, B Sayyaf Dezfuli
Rodlet cells (RC) are characterized by a distinctive cell cortex and conspicuous inclusions named "rodlets." These cells are particularly abundant and large in size in intestine of eels. Histochemical, immunohistochemical and ultrastructural investigations were carried out on European eel Anguilla anguilla and Common carp Cyprinus carpio from Northern Italy. Eight biotinylated lectins were used to probe for specific carbohydrate residues in deparaffinized, hydrated intestinal sections of eel and carp. Five antibodies were tested on intestinal sections of both fish species: inducible nitric oxide synthase (i-NOS), leu-enkephalin, lysozyme, serotonin and tumour necrosis factor-α...
November 21, 2017: Journal of Fish Diseases
https://www.readbyqxmd.com/read/29149760/patterns-of-relapse-in-poor-prognosis-germ-cell-tumours-in-the-getug-13-trial-implications-for-assessment-of-brain-metastases
#13
Y Loriot, L Pagliaro, A Fléchon, J Mardiak, L Geoffrois, P Kerbrat, C Chevreau, R Delva, F Rolland, C Theodore, G Roubaud, G Gravis, J C Eymard, J P Malhaire, C Linassier, M Habibian, A L Martin, F Journeau, M Reckova, C Logothetis, A Laplanche, G Le Teuff, S Culine, K Fizazi
BACKGROUND: The GETUG 13 phase III trial tested personalised chemotherapy based on tumour marker decline in patients with poor-prognosis germ-cell tumour (GCT) and demonstrated that a dose-dense regimen improves progression-free survival in patients with an unfavourable decline. We investigated the pattern of relapse for patients included in GETUG 13. METHODS: We conducted an analysis of relapse events in patients from GETUG 13. Baseline procedures before inclusion in the trial comprised a thoraco-abdomino-pelvic computed tomography scan and a magnetic resonance imaging of the brain...
November 14, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/29147855/phase-ii-study-of-palonosetron-aprepitant-and-dexamethasone-to-prevent-nausea-and-vomiting-induced-by-multiple-day-emetogenic-chemotherapy
#14
Takeshi Ioroi, Junya Furukawa, Manabu Kume, Sachi Hirata, Yuko Utsubo, Naomi Mizuta, Hideaki Miyake, Masato Fujisawa, Midori Hirai
PURPOSE: This study aimed to determine the antiemetic efficacy and safety of palonosetron, aprepitant and dexamethasone in patients with testicular germ cell tumours (TGCTs) receiving 5-day cisplatin-based combination chemotherapy. METHODS: In this open-label, single-arm, single-centre study, the antiemetic therapy consisted of palonosetron 0.75 mg on day 1, aprepitant 125 mg on day 1 and 80 mg on days 2-7 and dexamethasone 6.6 mg on days 1-7. The primary endpoint was complete response (CR; no vomiting/retching or rescue medication) in the overall period (0-240 h), and secondary endpoints included complete protection (CP; defined as CR and no more than mild nausea) and total control (TC; defined as CR and no nausea)...
November 16, 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/29144948/re-the-world-health-organization-2016-classification-of-testicular-germ-cell-tumours-a-review-and-update-from-the-international-society-of-urological-pathology-testis-consultation-panel
#15
https://www.readbyqxmd.com/read/29129333/pitfalls-in-the-interpretation-of-specimens-from-patients-with-testicular-tumours-with-an-emphasis-on-variant-morphologies
#16
REVIEW
Thomas M Ulbright
Accurate diagnosis of primary and metastatic tumours is essential in testicular cancer. While many cases are straightforward, some pose difficulties, especially when variant morphologies occur. Seminoma with 'atypical' features, including increased nuclear pleomorphism and crowding and greater cytoplasmic density with loss of membrane definition, mimics embryonal carcinoma, although ancillary features (fibrous septa, lymphocytes) and immunohistochemistry are of great help. Other deceptive seminoma features include prominent to exclusive intertubular growth, microcystic/tubular patterns, and signet-ring tumour cells...
November 9, 2017: Pathology
https://www.readbyqxmd.com/read/29106744/germ-cell-tumor-growth-patterns-originating-from-clear-cell-carcinomas-of-the-ovary-and-endometrium-a-comparative-immunohistochemical-study-favouring-their-origin-from-somatic-stem-cells
#17
F F Nogales, J Prat, M Schuldt, N Cruz-Viruel, B Kau, E D'Angelo, X Matias-Guiu, A Vidal, W G McCluggage, J W Oosterhuis
AIMS: To report a series of 11 ovarian and one endometrial neoplasm in elderly patients with mixed clear cell tumour and germ cell tumour (GCT) components, to compare their immunohistochemical and demonstrate a putative stem cell population. METHODS AND RESULTS: The clear cell tumours included 11 clear cell carcinomas (CCC) and 1 borderline clear cell tumour, while the GCT always included glandular yolk sac tumour (YST). In 4 cases, there were also foci of teratoma with immature neuroepithelial and endodermal tissues, and undifferentiated areas showing true embryoids...
November 6, 2017: Histopathology
https://www.readbyqxmd.com/read/29096400/cancer-incidence-in-english-children-adolescents-and-young-people-past-trends-and-projections-to-2030
#18
Francesca Pesola, Jacques Ferlay, Peter Sasieni
BACKGROUND: Estimating the future incidence of cancer is important to establish sufficient service provision, however, work in this area is limited for cancer in children, adolescents, and young adults (aged 0-24). METHODS: Age-period-cohort models were applied to cancer incidence rates for the period 1971-2013 in England. This allowed us to extrapolate past trends to 2030. We used the appropriate cancer classification developed for cancers in children and young adults, which are analysed as two separate groups to capture inherent differences...
November 2, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/29090496/primordial-odontogenic-tumor-a-case-report-with-histopathological-analyses
#19
Toshinari Mikami, Yu Ohashi, Ronell Bologna-Molina, Adalberto Mosqueda-Taylor, Naoki Fujiwara, Naoko Tsunoda, Hiroyuki Yamada, Yasunori Takeda
Primordial odontogenic tumor (POT) is a benign mixed epithelial and mesenchymal odontogenic tumor included into the current World Health Organization (WHO) classification of Head and Neck tumours in 2017. As far as the authors have confirmed, only eight cases of this tumor have been reported so far. This paper reports a case of POT that occurred in the right mandible of a 5-year-old patient. Panoramic radiograph showed a well-defined homogeneous radiolucency displacing the unerupted second deciduous molar to the deep part of the mandible...
November 1, 2017: Pathology International
https://www.readbyqxmd.com/read/29066646/recurrence-of-immature-ovarian-teratoma-as-malignant-follicular-carcinoma-with-liver-and-peritoneal-metastasis-22-years-after-completion-of-initial-treatment
#20
Nicholas Brian Shannon, Norman Hok Ling Chan, Melissa Ching Ching Teo
Growing tumour syndrome (GTS) is a rare event in which germ cell tumours treated with chemotherapy undergo maturation, acquire resistance to chemotherapy and regrow. The optimum treatment strategy is complete surgical excision. We report on a case of GTS with malignant metastases to the liver presenting 22 years after completion of treatment for immature teratoma, successfully managed with surgical resection alone.
October 24, 2017: BMJ Case Reports
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